/* ==========================================================================
   TONALLITECH — Navbar Component
   ========================================================================== */

/* ─── NAVBAR WRAPPER ─── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  padding: 0 var(--section-padding-x);
  overflow: visible;
  transition: background var(--duration-slow) var(--ease),
              border-color var(--duration-slow) var(--ease),
              box-shadow var(--duration-slow) var(--ease);
}

/* Transparent at top */
.navbar {
  background: transparent;
  border-bottom: 1px solid transparent;
}

/* Scrolled state — added by JS */
.navbar.is-scrolled {
  background: rgba(8, 9, 12, 0.88);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom-color: var(--tt-border);
  box-shadow: 0 1px 0 rgba(255,255,255,0.03),
              0 4px 32px rgba(0,0,0,0.4);
}

/* SD variant */
.navbar--sd.is-scrolled {
  background: rgba(7, 16, 13, 0.88);
  border-bottom-color: var(--sd-border);
}

/* ─── INNER LAYOUT ─── */
.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  gap: var(--space-8);
}

/* ─── LOGO ─── */
.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  text-decoration: none;
  flex-shrink: 0;
}

.navbar__logo-mark {
  width: auto;
  height: 210px;
  max-width: 450px;
  border-radius: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  display: block;
  overflow: hidden;
  object-fit: contain;
  transform: translateY(4px);
}

.navbar__logo-text {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--tt-text);
  line-height: 1;
}

.navbar__logo-text span {
  color: var(--tt-accent);
}

/* SD logo variant */
.navbar--sd .navbar__logo-mark {
  background: linear-gradient(135deg, var(--sd-accent) 0%, #16a34a 100%);
}
.navbar--sd .navbar__logo-text span {
  color: var(--sd-accent);
}

/* ─── NAV LINKS ─── */
.navbar__links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.navbar__link {
  position: relative;
}

.navbar__link a {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--tt-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease),
              background var(--duration-fast) var(--ease);
  text-decoration: none;
}

.navbar__link a:hover {
  color: var(--tt-text-2);
  background: rgba(255,255,255,0.04);
}

.navbar__link.is-active a {
  color: var(--tt-text);
}

/* Active indicator dot */
.navbar__link.is-active a::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--tt-accent);
}

/* SD link colors */
.navbar--sd .navbar__link a:hover {
  color: var(--sd-text-2);
}
.navbar--sd .navbar__link.is-active a {
  color: var(--sd-text);
}
.navbar--sd .navbar__link.is-active a::after {
  background: var(--sd-accent);
}

/* ─── ECOSYSTEM DROPDOWN TRIGGER ─── */
.navbar__ecosystem {
  position: relative;
}

.navbar__eco-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--tt-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast), background var(--duration-fast);
  cursor: pointer;
  background: none;
  border: none;
}

.navbar__eco-btn:hover {
  color: var(--tt-text-2);
  background: rgba(255,255,255,0.04);
}

.navbar__eco-btn .chevron {
  width: 10px;
  height: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--duration-fast) var(--ease);
}

.navbar__eco-btn .chevron svg {
  width: 10px;
  height: 6px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.navbar__ecosystem.is-open .chevron {
  transform: rotate(180deg);
}

/* Ecosystem dropdown */
.navbar__dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  background: var(--tt-surface);
  border: 1px solid var(--tt-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  box-shadow: var(--shadow-lg),
              0 0 0 1px rgba(255,255,255,0.04) inset;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(-8px);
  transition: opacity var(--duration) var(--ease),
              visibility var(--duration) var(--ease),
              transform var(--duration) var(--ease);
  z-index: var(--z-dropdown);
}

.navbar__ecosystem.is-open .navbar__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.navbar__dropdown-label {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tt-muted-2);
  padding: 8px 12px 4px;
  font-family: var(--font-body);
}

.navbar__dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast) var(--ease);
  text-decoration: none;
  cursor: pointer;
}

.navbar__dropdown-item:hover {
  background: rgba(255,255,255,0.04);
}

.navbar__dropdown-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.navbar__dropdown-dot--tt { background: var(--tt-accent); }
.navbar__dropdown-dot--sd { background: var(--sd-accent); }
.navbar__dropdown-dot--ac { background: var(--tt-accent2); }

.navbar__dropdown-info {
  flex: 1;
  min-width: 0;
}

.navbar__dropdown-name {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--tt-text);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.navbar__dropdown-desc {
  font-size: 10px;
  color: var(--tt-muted);
  letter-spacing: 0.03em;
  margin-top: 1px;
}

.navbar__dropdown-arrow {
  color: var(--tt-muted-2);
  font-size: 12px;
  flex-shrink: 0;
}

.navbar__dropdown-divider {
  height: 1px;
  background: var(--tt-border);
  margin: var(--space-2) 0;
}

/* ─── RIGHT ACTIONS ─── */
.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.navbar__cta {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: var(--tt-accent);
  color: #fff;
  border: 1px solid var(--tt-accent);
  transition: all var(--duration) var(--ease);
  cursor: pointer;
  text-decoration: none;
}

.navbar__cta:hover {
  background: var(--tt-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--tt-accent-glow);
}

.navbar--sd .navbar__cta {
  background: var(--sd-accent);
  color: var(--sd-bg);
  border-color: var(--sd-accent);
}

.navbar--sd .navbar__cta:hover {
  background: var(--sd-accent-hover);
  box-shadow: 0 4px 16px var(--sd-accent-glow);
}

/* ─── MOBILE HAMBURGER ─── */
.navbar__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--duration-fast);
  background: none;
  border: none;
}

.navbar__burger:hover {
  background: rgba(255,255,255,0.05);
}

.navbar__burger-line {
  width: 20px;
  height: 1.5px;
  background: var(--tt-muted);
  border-radius: 1px;
  transform-origin: center;
  transition: all var(--duration) var(--ease);
}

.navbar__burger.is-open .navbar__burger-line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.navbar__burger.is-open .navbar__burger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.navbar__burger.is-open .navbar__burger-line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ─── MOBILE MENU DRAWER ─── */
.navbar__mobile {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(8, 9, 12, 0.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid var(--tt-border);
  z-index: calc(var(--z-sticky) - 1);
  overflow-y: auto;
  padding: var(--space-8) var(--section-padding-x);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity var(--duration) var(--ease),
              visibility var(--duration) var(--ease),
              transform var(--duration) var(--ease);
}

.navbar__mobile.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.navbar--sd .navbar__mobile {
  background: rgba(7, 16, 13, 0.98);
  border-top-color: var(--sd-border);
}

.navbar__mobile-links {
  list-style: none;
  margin-bottom: var(--space-8);
}

.navbar__mobile-links li {
  border-bottom: 1px solid var(--tt-border);
}

.navbar__mobile-links a {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--tt-muted);
  padding: var(--space-4) 0;
  transition: color var(--duration-fast);
  text-decoration: none;
}

.navbar__mobile-links a:hover {
  color: var(--tt-text);
}

.navbar__mobile-divider {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tt-muted-2);
  padding: var(--space-5) 0 var(--space-3);
}

.navbar__mobile-eco {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.navbar__mobile-eco-item {
  border: 1px solid var(--tt-border);
  border-radius: var(--radius);
  padding: var(--space-4);
  text-decoration: none;
  transition: border-color var(--duration-fast);
}

.navbar__mobile-eco-item:hover {
  border-color: var(--tt-border-hover);
}

.navbar__mobile-eco-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-bottom: var(--space-2);
}

.navbar__mobile-eco-name {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--tt-text);
}

.navbar__mobile-eco-role {
  font-size: 10px;
  color: var(--tt-muted);
  margin-top: 2px;
}

.navbar__mobile-cta {
  margin-top: var(--space-8);
}

.navbar__mobile-cta .btn {
  width: 100%;
  justify-content: center;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .navbar__links,
  .navbar__ecosystem,
  .navbar__cta {
    display: none;
  }

  .navbar__burger {
    display: flex;
  }
}